The following lines contain the word 'select', 'insert', 'update' or 'delete':
select soundex(ch) into c from sys.dual;
select uid into i from sys.dual;
select user into c from sys.dual;
select userenv('TERMINAL') into c from sys.dual;
select userenv('ENTRYID') into c from sys.dual;
select userenv('SESSIONID') into c from sys.dual;
select userenv('LANGUAGE') into c from sys.dual;
select userenv('LANG') into c from sys.dual;
select userenv('INSTANCE') into c from sys.dual;
select userenv('CLIENT_INFO') into c from sys.dual;
select userenv('ISDBA') into c from sys.dual;
select userenv('SCHEMAID') into c from sys.dual;
select userenv('SID') into c from sys.dual;
select userenv('PID') into c from sys.dual;
select nls_charset_name(csetid) into v from sys.dual;
select nls_charset_id(csetname) into i from sys.dual;
select nls_charset_decl_len(bytecnt, csetid) into i from sys.dual;
select sysdate into d from sys.dual;
select sys_guid() into c from sys.dual;
select sys_context(namespace,attribute) into c from sys.dual;
SELECT systimestamp INTO t FROM sys.dual;
SELECT dbtimezone INTO t FROM sys.dual;
select sys_context(namespace,attribute,newoptional) into c from sys.dual;